datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2000,08 0:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,08 1:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,08 2:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,08 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,08 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,08 5:30:00,31 ,       0,0.878492,0.213264,0.306326
sgpcmbeC1.c1,2000,08 6:30:00,31 ,0.014993,36.72295,20.93964,11.03962
sgpcmbeC1.c1,2000,08 7:30:00,31 ,0.095156, 72.5202,42.72605,18.67696
sgpcmbeC1.c1,2000,08 8:30:00,31 ,0.332443,183.8203,62.16179,34.54961
sgpcmbeC1.c1,2000,08 9:30:00,31 ,0.414313,182.7517,55.79665,   34.48
sgpcmbeC1.c1,2000,0810:30:00,31 ,20.02816,200.3188,63.02439,50.91621
sgpcmbeC1.c1,2000,0811:30:00,31 ,12.71372,294.0914,68.93419,82.03971
sgpcmbeC1.c1,2000,0812:30:00,31 ,5.037935,275.3968,72.69988,89.11757
sgpcmbeC1.c1,2000,0813:30:00,31 ,4.161459,235.8771,86.17384,86.29296
sgpcmbeC1.c1,2000,0814:30:00,31 ,26.56653,246.9588,79.47663, 66.7987
sgpcmbeC1.c1,2000,0815:30:00,31 ,18.89033,214.3726,86.53482,56.74938
sgpcmbeC1.c1,2000,0816:30:00,31 ,2.603289,150.5656, 72.0649,33.57166
sgpcmbeC1.c1,2000,0817:30:00,31 ,20.75073,83.00317,51.28492,15.25144
sgpcmbeC1.c1,2000,0818:30:00,31 ,5.681641,40.38826,25.93389,9.334261
sgpcmbeC1.c1,2000,0819:30:00,30 ,       0,3.577125, 1.06609,1.232478
sgpcmbeC1.c1,2000,0820:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0821:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0822:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0823:30:00,31 ,       0,       0,       0,       0